66 research outputs found
1-[2,4,6-Trimethyl-3,5-bis(4-oxopiperidin-1-ylmethyl)benzyl]piperidin-4-one
In the structure of the title compound, C27H39N3O3, each of the (4-oxopiperidin-1-yl)methyl residues adopts a flattened chair conformation (with the N and carbonyl groups being oriented to either side of the central C4 plane) and they occupy positions approximately orthogonal to the central benzene ring [Cbenzene—C—Cmethylene—N torsion angles 103.4 (2), −104.4 (3) and 71.9 (3)°]; further, two of these residues are oriented to one side of the central benzene ring with the third to the other side. In the crystal packing, supramolecular layers in the ab plane are sustained by C—H⋯O interactions
1-Chloroacetyl-3-isopropyl-r-2,c-6-diphenylpiperidin-4-one
In the title compound, C22H24ClNO2, the piperidine ring adopts a distorted boat conformation. The dihedral angle between the two phenyl rings is 83.2 (1)°. In the crystal, the molecules are linked into chains running along the b axis by C—H⋯O hydrogen bonds. The Cl atom of the chloroacetyl group is disordered over two positions with occupancies of 0.66 (2) and 0.34 (2)
Preparation and Characterization of SBA-15 Supported Cobalt–Molybdenum Sulfide Catalysts for HDS Reaction: An All Sulfide Route to Hydrodesulfurization Catalysts
3-Isopropyl-2,6-bis(4-methoxyphenyl)piperidin-4-one
In the title compound, C22H27NO3, the piperidine ring adopts a slightly distorted chair conformation. The dihedral angle between the two aromatic rings is 60.4 (1)°. In the crystal, the amino group forms a rather long N—H...O contact to a methoxy O atom. There are also C—H...O interactions present
German rationalism, in its rise, progress, and decline, in relation to theologians, scholars, poets, philosophers, and the people : a contribution to the church history of the eighteenth and nineteenth centuries /
"Chapters I. to ... XXIV. are translated by Mr. Gage; chapters XIV to XXIII...by Mr. Stuckenberg.""The editors have abridged this work, omitting matter which was of ... little interest in Great Britain and the United States".--Introd.Mode of access: Internet
History of the church in the eighteenth and nineteenth centuries.
Lectures I-VII, IX and portions of X of v. 1, and portions of XVI and XVII of v. 2 were translated by B. H. Nadal. cf. The translator's preface.Mode of access: Internet
1-Dichloroacetyl-r-2,c-6-bis(4-methoxyphenyl)-t-3,t-5-dimethylpiperidin-4-one
In the title compound, C23H25Cl2NO4, the piperidine ring adopts a distorted boat conformation. The dihedral angle between the benzene rings is 54.8 (1)°. In the crystal, the molecules are linked into a two-dimensional network parallel to the ab plane by C—H...O hydrogen bonds
- …